There are three major strands of Buddhism which are, Mahayana, Theravada, Vajrayana. If you include Ch'an / Zen Buddhism as a separate school then you have four.
The Four Noble Truths comprise the core ideas of Buddhism. They do not merely impact Buddhism, they are Buddhism. Everything in Buddhism springs from these tenets. If you can fully understand and embody the four truths, there is nothing else needed to attain enlightenment. Such is the nature of the Four Noble Truths.
the answer is four.
Buddhism
Astangamarga
Christianity, Islam, Buddhism, Hinduism
Mahayana is the only proper Japanese buddhism
Two - the leading strand and the lagging strand.
Buddhism is founded on the teachings of the Buddha, in particular the Four Noble Truths and the eightfold path.
The major belief (or teachings) of Buddhism is the Four Noble Truths. The major practice of Buddhism is the Five Noble Precepts.
The Four Noble Truths.
Buddhism
buddhism